zephyr/drivers/serial/Kconfig.ns16550

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menuconfig UART_NS16550
bool "NS16550 serial driver"
default n
select SERIAL_HAS_DRIVER
select SERIAL_SUPPORT_INTERRUPT
help
This option enables the NS16550 serial driver.
This driver can be used for the serial hardware
available on x86 boards.
config UART_NS16550_PCI
bool "Enable PCI Support"
default n
depends on PCI && UART_NS16550
help
This enables NS16550 to probe for PCI-based serial devices.
This option enables the driver to auto-detect the device
configuration required to access those ports.
config UART_NS16550_DLF
bool "Enable Divisor Latch Fraction (DLF) support"
default n
depends on UART_NS16550
help
This enables support for divisor latch fraction (DLF).
It is used to limit frequency error.
Says n if you are not sure if hardware supports this.
config UART_NS16550_LINE_CTRL
bool "Enable Serial Line Control for Apps"
default n
depends on UART_LINE_CTRL && UART_NS16550
help
This enables the API for apps to control the serial line,
such as CTS and RTS.
Says n if not sure.
config UART_NS16550_DRV_CMD
bool "Enable Driver Commands"
default n
depends on UART_DRV_CMD && UART_NS16550
help
This enables the API for apps to send commands to driver.
Says n if not sure.
config UART_NS16750
bool "Enable 64-bytes FIFO for UART 16750"
default n
depends on UART_NS16550
help
This enables support for 64-bytes FIFO if UART controller is 16750.
# ---------- Port 0 ----------
menuconfig UART_NS16550_PORT_0
bool "Enable NS16550 Port 0"
default n
depends on UART_NS16550
help
This tells the driver to configure the UART port at boot, depending on
the additional configure options below.
if !HAS_DTS
config UART_NS16550_PORT_0_NAME
string "Port 0 Device Name"
default "UART_0"
depends on UART_NS16550_PORT_0
help
This is the device name for UART, and is included in the device
struct.
if !HAS_DTS && !ARC
config UART_NS16550_PORT_0_IRQ_PRI
int "Port 0 Interrupt Priority"
default 0
depends on UART_NS16550_PORT_0
help
The interrupt priority for UART port.
endif
config UART_NS16550_PORT_0_BAUD_RATE
int "Port 0 Baud Rate"
default 0
depends on UART_NS16550_PORT_0
help
The baud rate for UART port to be set to at boot.
Leave at 0 to skip initialization.
endif
config UART_NS16550_PORT_0_OPTIONS
int "Port 0 Options"
default 0
depends on UART_NS16550_PORT_0
help
Options used for port initialization.
config UART_NS16550_PORT_0_DLF
hex "Port 0 DLF value"
default 0x0
depends on UART_NS16550_PORT_0 && UART_NS16550_DLF
help
Value for DLF register.
config UART_NS16550_PORT_0_PCI
bool "Port 0 is PCI-based"
default n
depends on UART_NS16550_PCI && UART_NS16550_PORT_0
help
Obtain port information from PCI.
# ---------- Port 1 ----------
menuconfig UART_NS16550_PORT_1
bool "Enable NS16550 Port 1"
default n
depends on UART_NS16550
help
This tells the driver to configure the UART port at boot, depending on
the additional configure options below.
if !HAS_DTS
config UART_NS16550_PORT_1_NAME
string "Port 1 Device Name"
default "UART_1"
depends on UART_NS16550_PORT_1
help
This is the device name for UART, and is included in the device
struct.
if !HAS_DTS && !ARC
config UART_NS16550_PORT_1_IRQ_PRI
int "Port 1 Interrupt Priority"
default 0
depends on UART_NS16550_PORT_1
help
The interrupt priority for UART port.
endif
config UART_NS16550_PORT_1_BAUD_RATE
int "Port 1 Baud Rate"
default 0
depends on UART_NS16550_PORT_1
help
The baud rate for UART port to be set to at boot.
Leave at 0 to skip initialization.
endif
config UART_NS16550_PORT_1_OPTIONS
int "Port 1 Options"
default 0
depends on UART_NS16550_PORT_1
help
Options used for port initialization.
config UART_NS16550_PORT_1_DLF
hex "Port 1 DLF value"
default 0x0
depends on UART_NS16550_PORT_1 && UART_NS16550_DLF
help
Value for DLF register.
# ---------- Port 2 ----------
menuconfig UART_NS16550_PORT_2
bool "Enable NS16550 Port 2"
default n
depends on UART_NS16550
help
This tells the driver to configure the UART port at boot, depending on
the additional configure options below.
config UART_NS16550_PORT_2_OPTIONS
int "Port 2 Options"
default 0
depends on UART_NS16550_PORT_2
help
Options used for port initialization.
config UART_NS16550_PORT_2_DLF
hex "Port 2 DLF value"
default 0x0
depends on UART_NS16550_PORT_2 && UART_NS16550_DLF
help
Value for DLF register.